Raman spectra and non-empirical calculations of dimethylformamide molecular clusters structure

被引:11
|
作者
Hushvaktov, Hakim [1 ]
Jumabaev, Abduvakhid [1 ]
Doroshenko, Iryna [2 ]
Absanov, Ahmad [1 ]
机构
[1] Samarkand State Univ, 15 Univ Blvd, Samarkand 140104, Uzbekistan
[2] Taras Shevchenko Natl Univ Kyiv, Volodymyrska Str 64-13, UA-01601 Kiev, Ukraine
关键词
Dimethylformamide; Hydrogen bond; Raman spectra; Molecular aggregation; Cluster; AB-INITIO; LIQUID DIMETHYLFORMAMIDE; FORCE-CONSTANTS; N; N-DIMETHYLFORMAMIDE; RELAXATION; DEPENDENCE; DYNAMICS; DFT; DMF;
D O I
10.1016/j.vibspec.2021.103315
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
The article presents the results of a study on the formation of molecular clusters of dimethylformamide. The intermolecular interactions of isolated molecular clusters have been simulated by B3LYP/(6-31G++(d,p) method. It is shown that hydrogen bonding and resonant transfer of vibrational energy play an important role in the formation of molecular clusters by dimethylformamide molecules. Methyl and aldehyde groups of a DMF molecule act as proton donors in the formation of molecular clusters, C--O is a strong acceptor. It was shown that in solutions of DMF with water, an H-bond is formed between the oxygen of NCOH group and the hydrogen atom of water.
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页数:8
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